Most of the puppies that pet stores sell are trucked or flown hundreds of miles from puppy mills, creating a Great Dane–sized carbon pawprint. But animal shelters in every city are full of locally grown companion animals you can tuck into your Smart car before taking the short drive home.

Photo courtesy of PETA

9) Sea yourself away from water pollution.

SeaWorld isn’t just hard on orcas—it’s also hard on the environment. The marine park was in a fine mess after it got hit with a fine for messing up San Diego’s Mission Bay after violating effluent limitations numerous times.

Credit: PETA

8) Make like Miss Piggy and love a frog.

Ecosystems are being decimated by biological supply houses that catch huge numbers of frogs to be dissected. If you’re a student or parent, urge your local school district to switch to a virtual dissection program instead.

People for the Ethical Treatment of Animals (PETA) is the largest animal rights organization in the world, with more than 3 million members and supporters. PETA focuses its attention on the four areas in which the largest numbers of animals suffer the most intensely for the longest periods of time: on factory farms, in the clothing trade, in laboratories, and in the entertainment industry.